The gun grenade barrel is similar to those gun grenades in later generations, which are all mounted on the rifle body, with the rifle as the carrier of additional firing equipment, and the blasting grenade is fired as the main killing method, but most of the later generations are external gun grenades, and the 28 type grenades are directly inserted into the muzzle.

The batch of domestically produced Type 28 grenade barrels supplemented to the teaching brigade has a caliber of about 25 millimeters, and the instruction manual printed by the arsenal explains in detail how to use the gun grenade barrel.

The use of this gun grenade barrel is expressed in a combination of pictures and words, the ammunition used in the 28 gun grenade barrel is a special grenade, when used, the gun grenade barrel is put on the muzzle of the rifle, and the gun grenade is loaded into the gun grenade barrel.

There were special bullets when fired, and the teaching brigade received more than 1,500 rounds, and when fired, the shooter pulled the trigger and fired special bullets, which hit the grenade through the barrel and shot the grenade.

The way of firing, the shooter has to place the rifle at an angle, and the shot is a curve, and the mortar is the same as the grenadier, it is a curved weapon, and the most tedious process is aiming.

The instructions indicate that the firing range is controlled by a grenade, and the ammunition of the grenade, similar to that of a grenade, is black, and the back is inlaid with a long wooden handle, and the wooden handle has many scales on the body.

The scale on the body of the grenades received by the teaching brigade was divided from 50 meters to 220 meters, and the range of the grenades was changed by controlling the depth at which the grenades were inserted into the grenade barrels, and the range of the rifle should be properly controlled by using the rifle ruler.

The grenade uses a delayed fuse, with a delay of nine to eleven seconds, and the grenade is loaded with 55 grams of yellow explosive, and the length of the bullet body is the same as that of the wooden-handled grenade.

In addition, the manual also said that the ammunition of this grenade can also be thrown as a grenade, but it is a little troublesome, you have to pull out the copper wire on the grenade, and then smash the wooden handle of the grenade on the ground and throw it out, so that it can be used as a grenade in an emergency.

Gun grenades are equipped in all countries, and the essence is similar, using rifles to throw explosive ammunition, but some are special grenades for projectile, some are grenades, and they are curved weapons like grenades.

The advantage is that it is easy to carry, the weight of a gun grenade barrel is less than a catty, and the soldiers can usually straddle the waist, which is more convenient than the carrying of the grenadier canister.

Zhang Wei discovered a very interesting phenomenon: his teaching brigade has recently added new weapons, one is the 27-type 50-zero grenadier canister, and the other is the 28-type gun grenade, these two weapons are new equipment, and they are given priority equipment to the newly formed 11th Army, which shows that these are the weapons and equipment that will be installed on a large scale in the national army, and these two weapons are curved weapons.

Needless to say, the grenadier is a devil who learns, and the gun and grenade barrel has also been developed in other countries, but it was not equipped in the national army before, and as a result, the war of resistance for more than a year, the arsenal in the rear was immediately tinkered with.

In less than a year, two new pieces of equipment were developed, Zhang Wei thought, the grenadier must have been developed because the devil grenadier lost too much, and this gun grenade was improvised because the overall firepower of the army was too weak and the firepower needed to be strengthened urgently. Under the stimulus of war, the efficiency and speed of the development of the military industry have simply increased greatly!

The gun grenade barrel has the same curved shooting characteristics as the grenadier canister, as well as the lighter mass, there are advantages and disadvantages, Zhang Wei read the manual, and found that the gun grenade also accounted for the same problem as the grenadier barrel, and the operation was not easy for the soldiers of the national army.

The grenadier is based on experience, although the grenade barrel can be better, the grenade is marked with a range scale, but considering the need to control the elevation angle of the rifle and the scale of the rifle ruler, its operation difficulty is still not small for the soldiers of the national army.

But since it was shipped, Zhang Wei had no reason not to equip it.

Zhang Wei decided to teach each infantry squad of the brigade to be equipped with one grenadier and one grenade for each squad to form a strong network of curved firepower.

The infantry squad of the teaching brigade is divided into a light machine gun group, a grenadier group and two assault groups, and the additional gun grenades are distributed in an assault group, and in the offensive phase, the assault group advances under the cover of grenadiers and light machine guns, and if it encounters a difficult fire point, the assault group equipped with gun grenade canisters can try to knock out the fire point on its own.

To a certain extent, the own firepower of the assault group was increased.

Grenadiers, grenade canisters, and operational problems are the drawbacks of such small curved weapons, and the officers and men of the national army, who are of low quality compared to the Japanese army, are definitely at a disadvantage in operating this type of weapon.

Since the quality is not good, Zhang Wei will use the quality to make up for it, each squad has a grenadier canister and a gun and grenade firepower.

A squad is a grenadier and a gun grenade, a platoon is three grenadiers and three rounds of gun grenades, and a battalion is 27 combat strength and 27 gun grenade canisters.

The training for equipping and modifying guns and grenades began immediately after the equipment was in place, and the time was tight and the tasks were heavy, so the guns and grenades had to be immediately sent down and equipped with the troops.

In order to speed up the training progress, Zhang Wei and the squadron leader and platoon commander first studied and test-fired, and then personally took turns to teach the soldiers to train.

The teaching brigade must first master the various operations and uses of the equipment on active duty, and when the cadets arrive, they must also teach the cadets and make themselves familiar with the use before teaching others.

The modification training process is not difficult, the gun grenade barrel is not like a grenadier canister, which changes the combat form of the infantry squad, so that an assault group directly becomes a cover group.

The gun grenade barrel does not occupy the establishment, does not need a secondary shooter, and the launcher can carry the gun grenade barrel and ammunition by himself, load and fire by himself.

The assault group equipped with a gun grenade canister does not need to be converted from an assault attack to a cover mission, and the gun grenade canister is more like the fire cover provided to this assault group, mainly to cover the assault group, and also to provide fire support for other parts of the squad.

The firing range of the grenadier is about 300 meters, and the maximum projectile distance of the grenade is more than 250 meters.

Up to now, the training brigade has formed a three-stage curved explosive firearm consisting of a 20-year-old 82 mortar, a 27-type 50-zero grenadier, and a 28-type grenade.

Against the Japanese brigade, except for the lack of direct-fire guns such as infantry guns, they were basically equal to the Japanese army in other aspects, and had a slight advantage over the Japanese army in some aspects.